Click to See Complete Forum and Search --> : [RESOLVED] Invalid command.com


mlesygma
July 3rd, 2000, 12:36 PM
I am getting an invalid command.com when booting from all types of media and with all dos and windows boot disks. Can anyone help?

pcshark
July 3rd, 2000, 02:29 PM
Are you certain that the system BIOS is set to boot from A: first? If the system is set to boot from C: first, and the hard drive has no system files on it, or the system files are corrupt, then you will get the same message even if you have a bootable floppy in the A: drive. Set the system boot options to A: then C:, or something like that, and try again with the bootable floppy.

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R. Bret Walker, CNE

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MAYHEM
July 20th, 2000, 05:59 PM
Actually if it's booting an empty hard drive first you will get "no operating system found" Try making a new disk from another computer. HOWEVER, do not use the utility in Add/Remove Programs. Instead go to windows explorer and right click the A drive, click format and check copy system files. try this disk and see what happens.

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There is no Spoon!

Milenko
July 20th, 2000, 06:31 PM
maybe bad boot media (make another boot floppy), maybe back RAM (replace), or maybe a burnt processor. I had one doing that once and it turned out that the CPU fan was not working (why didn't i check that first?) and the CPU burnt. Go figure....

epiccs
July 24th, 2000, 10:06 PM
You probably have a virus on your boot sector of your hard disk. Try using an anti-virus program. Or at the command prompt type "fdisk /mbr" it will rewrite your boot sector.

Ruslan
July 26th, 2000, 07:25 PM
Agree with epiccs.
1.I'm use Ontrack Disk Manager 7.x running from diskette in advanced maintenance mode to fix this problem first.
2.Then, if all working O'k, You can install WIN95/98 and it should kill made by DM changes in boot sector.
3.If not - use Norton Disk Doctor (often called as Norton Disk Destroeyer,if You want) from NU8 (on FAT16 partitions) running with option:
ndd c:/rebuild.
I have save lots of HDD from trash doing so.
Of course, all information on this HDD will be lost.
4.Another possible source for this problem - bad MoBo' cashe. Try to disable MoBo cashe and reboot.